
const tagsView = {
  state: {
    visitedViews: [
      {
        title: '首页',
        path: '/home/index',
        meta: {
          title: '首页',
          affix: true
        }
      }
    ],
    cachedViews: ['CommonLayout']
  },
  getters: {
    cachedViews: state => state.cachedViews,

  },
  mutations: {
    ADD_VISITED_VIEW: (state, view) => {
      const title = `${view.query.title || view?.meta?.title || ''}${view.query.detailed ? `(${view.query.detailed})` : ''}`
      if (!title || state.visitedViews.some(v => v.title === title)) return
      state.visitedViews.push(
        Object.assign({}, view, {
          title: title
        })
      )
    },
    ADD_CACHED_VIEW: (state, view) => {
      if (state.cachedViews.includes(view.name)) return
      if (!view.meta.noCache) {
        state.cachedViews.push(view.name)
      }
    },
    DEL_VISITED_VIEW: (state, view) => {
      for (const [i, v] of state.visitedViews.entries()) {
        if (v.fullPath === view.fullPath) {
          state.visitedViews.splice(i, 1)
          break
        }
      }
    },
    DEL_CACHED_VIEW: (state, view) => {
      const data = state.visitedViews.find(item => item.path === view.path)
      if(data) return
      const index = state.cachedViews.indexOf(view.name)
      index > -1 && state.cachedViews.splice(index, 1)
      state.cachedViews = [...state.cachedViews]
    },
    DEL_OTHERS_VISITED_VIEWS: (state, view) => {
      state.visitedViews = state.visitedViews.filter(v => {
        return v.meta?.affix || v.fullPath === view.fullPath
      })
    },
    DEL_OTHERS_CACHED_VIEWS: (state, view) => {
      const index = state.cachedViews.indexOf(view.name)
      if (index > -1) {
        state.cachedViews = state.cachedViews.slice(index, index + 1)
      } else {
        state.cachedViews = ['CommonLayout']
      }
    },
    DEL_ALL_VISITED_VIEWS: state => {
      // keep affix tags
      const affixTags = state.visitedViews.filter(tag => tag.meta?.affix)
      state.visitedViews = affixTags
    },
    DEL_ALL_CACHED_VIEWS: state => {
      state.cachedViews = ['CommonLayout']
    },

    UPDATE_VISITED_VIEW: (state, view) => {
      for (let v of state.visitedViews) {
        if (v.fullPath === view.fullPath) {
          v = Object.assign(v, view)
          break
        }
      }
    }
  },
  actions: {
    addView({ dispatch }, view) {
      dispatch('addVisitedView', view)
      dispatch('addCachedView', view)
    },
    addVisitedView({ commit }, view) {
      commit('ADD_VISITED_VIEW', view)
    },
    addCachedView({ commit }, view) {
      commit('ADD_CACHED_VIEW', view)
    },
    delView({ dispatch, state }, view) {
      return new Promise(resolve => {
        dispatch('delVisitedView', view)
        dispatch('delCachedView', view)
        resolve({
          visitedViews: [...state.visitedViews],
          cachedViews: [...state.cachedViews]
        })
      })
    },
    delVisitedView({ commit, state }, view) {
      return new Promise(resolve => {
        commit('DEL_VISITED_VIEW', view)
        resolve([...state.visitedViews])
      })
    },
    delCachedView({ commit, state }, view) {
      return new Promise(resolve => {
        commit('DEL_CACHED_VIEW', view)
        resolve([...state.cachedViews])
      })
    },
    delOthersViews({ dispatch, state }, view) {
      return new Promise(resolve => {
        dispatch('delOthersVisitedViews', view)
        dispatch('delOthersCachedViews', view)
        resolve({
          visitedViews: [...state.visitedViews],
          cachedViews: [...state.cachedViews]
        })
      })
    },
    delOthersVisitedViews({ commit, state }, view) {
      return new Promise(resolve => {
        commit('DEL_OTHERS_VISITED_VIEWS', view)
        resolve([...state.visitedViews])
      })
    },
    delOthersCachedViews({ commit, state }, view) {
      return new Promise(resolve => {
        commit('DEL_OTHERS_CACHED_VIEWS', view)
        resolve([...state.cachedViews])
      })
    },
    delAllViews({ dispatch, state }, view) {
      return new Promise(resolve => {
        dispatch('delAllVisitedViews', view)
        dispatch('delAllCachedViews', view)
        resolve({
          visitedViews: [...state.visitedViews],
          cachedViews: [...state.cachedViews]
        })
      })
    },
    delAllVisitedViews({ commit, state }) {
      return new Promise(resolve => {
        commit('DEL_ALL_VISITED_VIEWS')
        resolve([...state.visitedViews])
      })
    },
    delAllCachedViews({ commit, state }) {
      return new Promise(resolve => {
        commit('DEL_ALL_CACHED_VIEWS')
        resolve([...state.cachedViews])
      })
    },
    updateVisitedView({ commit }, view) {
      commit('UPDATE_VISITED_VIEW', view)
    }
  }
}
export default tagsView
